深海捕鱼大师

Dilatometry and thermal expansion

深海捕鱼大师Dilatometry is a thermo-analytical method for measuring the shrinkage or expansion of materials over a controlled temperature regime. Our dilatometer has the capability to accurately measure the thermal expansion of materials at temperatures between ambient and 1000ºC in air or under an atmosphere.

深海捕鱼大师The amount of expansion or shrinkage is dependent on the characteristics of the material itself. It is often very important to match the thermal expansion behaviour of different materials that are in contact with one another in order to avoid unwanted stresses and possible cracking. It is equally important to combine measurements of properties with an understanding of the process itself, expertise that is offered by Glass Technology Services.

Most materials can be measured by dilatometry including glasses, ceramics, resins, polymers and metals.

Dilatometry allows measurement of the following properties:

  • Thermal expansion and coefficient of thermal expansion;
  • Sintering temperature and shrinkage steps;
  • Volumetric expansion;
  • Density change;
  • Glass transition temperature (Tg);
  • Dilatometric softening point (Td);
  • Phase transitions;
  • Measurement against international standards, including:
    • BS 7030:1988, ISO 7991:1987, Method for determination of the coefficient of mean linear thermal expansion of glass;
    • BS 1902-3.13:1996, ISO 12678-2:1996, Methods of testing refractory materials. General and textural properties. Measurement of dimensions and external defects of refractory bricks.

Please contact us, or make an enquiry using the form above, if you have any bespoke requirements, require further information, or would like a quote for analysis.

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